| Hoffman Radio Corp. | |||
| Model: B503 | Chassis: | Year: Pre 1949 | |
| Power: | Circuit: | IF: | |
| Tubes: | |||
| Bands: | |||
Resources:
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| Beitmans 1949 49 | |||
| Riders 17 (XVII) HOFFMAN 17-8 | |||
| Riders 17 (XVII) HOFFMAN 17-9 | |||
| Riders 17 (XVII) HOFFMAN 17-10 | |||
| Riders 17 (XVII) HOFFMAN 17-11 | |||